Rivkin, Marc
Current rating: 1382
Record: 12-21
| Grand Prix Las Vegas 2013 (MMA limited) | starting rating: 1411 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1032 | Morgan, Dennis (1500) | Lost 0-2 | -161395 |
| 2sealed | 1109 | Bryan, Christopher (1413) | Lost 0-2 | -181377 |
| 3sealed | 1112 | Kim, Sung (1517) | Won 2-0 | +211398 |
| 4sealed | 1101 | Gomez, Roberto (1515) | Lost 0-2 | -161382 |
| top | average opponent: 1486record: 1-3 | new rating: 1382 | ||
| Grand Prix Los Angeles 2009 (extended) | starting rating: 1402 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 240 | Henry, Patrick (1500) | Won 2-1 | +201422 |
| 2extended | 183 | Wegener, Jason M (1519) | Won 2-1 | +201442 |
| 3extended | 46 | Fleurant, Jason (1573) | Won 2-0 | +201462 |
| 4extended | 52 | Rodriguez, Pedro (1508) | Lost 0-2 | -171445 |
| 5extended | 82 | Gray, Andrew (1492) | Lost 1-2 | -171428 |
| 6extended | 191 | Anderson, Wesley (1517) | Lost 0-2 | -171411 |
| top | average opponent: 1518record: 3-3 | new rating: 1411 | ||
| Grand Prix Kansas City 2008 (ALA limited) | starting rating: 1437 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 100 | Burke, Joshua (1432) | Lost 0-2 | -181419 |
| 2sealed | 274 | Humphries, Matt (1481) | Lost 0-2 | -171402 |
| top | average opponent: 1456record: 0-2 | new rating: 1402 | ||
| Grand Prix Daytona Beach 2007 (LRW limited) | starting rating: 1454 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 171 | Jarrett, Patrick R (1500) | Won 2-0 | +181472 |
| 2sealed | 65 | Lewandoski, Kevin (1472) | Lost 0-2 | -181454 |
| 3sealed | 186 | Gatson, Jonathan (1500) | Lost 0-2 | -171437 |
| top | average opponent: 1490record: 1-2 | new rating: 1437 | ||
| Grand Prix Dallas 2007 (extended) | starting rating: 1491 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 23 | Smith, Patrick (1365) | Lost 0-2 | -211470 |
| 2extended | 238 | Manzer, Chris (1482) | Lost 0-2 | -171453 |
| 3extended | 318 | Trautman, Brian (1464) | Won 0-0 | +181471 |
| 4extended | 267 | Alvarado, Joel (1514) | Lost 0-2 | -171454 |
| top | average opponent: 1456record: 1-3 | new rating: 1454 | ||
| Grand Prix Phoenix 2006 (CSP limited) | starting rating: 1430 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 128 | Nix, Robert (1506) | Won 2-0 | +191449 |
| 2sealed | 68 | Clifford, Henry (1519) | Lost 0-2 | -171432 |
| 3sealed | 94 | Steinke, Curtis A (1500) | Won 2-0 | +191451 |
| 4sealed | 104 | Webb, Jay (1499) | Won 2-1 | +191470 |
| 5sealed | 60 | Lopez, Nick (1535) | Won 2-1 | +201490 |
| 6sealed | 40 | Nuijten, Julien (1914) | Lost 1-2 | -111479 |
| 7sealed | 65 | McCusker, Sean P (1539) | Won 2-0 | +191498 |
| 8sealed | 37 | Nakamura, Shuhei (2172) | Lost 0-2 | -71491 |
| top | average opponent: 1648record: 5-3 | new rating: 1491 | ||
| Grand Prix Anaheim 2003 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 75 | Balla, John (1681) | Lost 1-2 | -151485 |
| 2extended | 69 | Gopilan, Jarvis (1376) | Lost 1-2 | -201465 |
| 3extended | 102 | Matarese, Chris (1487) | Lost 0-2 | -171448 |
| 4extended | 127 | West, Aubrey (1446) | Won 2-0 | +181466 |
| 5extended | 113 | Hsu, Charles (1464) | Lost 0-2 | -181448 |
| 6extended | 102 | Hornak, Paul (1446) | Lost 0-2 | -181430 |
| top | average opponent: 1483record: 1-5 | new rating: 1430 | ||